1.use for all kinds of food beverage 2.stainless steel ,never rusty 3.Vertical ... plastic, aluminum thin bag of high temperature vacuum sealing.2. food materials such as stuffing, soup, seasoning, marinades meat, vegetables, containing ... dried fruit candied fruit, pickles, bean products, native products4.medicinal materials, electronic products, chemical goodsAdvantage: vacuum packing to isolate air, ...